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Finding the Fourth Proportional to 99,687.52, 137,566.26 and 54,366.40

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Solution

The fourth proportional to 99,687.52, 137,566.26 and 54,366.40 is: 75,024.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,687.52 : 137,566.26 = 54,366.40 : x
  2. Step 2: Convert to fraction form
    99,687.52/137,566.26 = 54,366.40/x
  3. Step 3: Cross multiply
    99,687.52x = 137,566.26 × 54,366.40
  4. Step 4: Simplify right side
    99,687.52x = 7,478,982,317.66
  5. Step 5: Solve for x
    x = 7,478,982,317.66/99,687.52
  6. Step 6: Final answer
    x = 75,024.26

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